Osami Nagano

Osami Nagano (15 June 1880-5 January 1947) was Chief of the Imperial Japanese Navy General Staff from April 1941 to February 1944, succeeding Fushimi Hiroyasu and preceding Shigetaro Shimada.

Biography
Osami Nagano was born on 15 June 1880 in Kochi Prefecture, Japan. He served in many staff positions during the Russo-Japanese War, leading a naval gun unit during the Siege of Port Arthur. From December 1920 to November 1923 he served as a military attache to the United States and was present at the Washington Naval Conference, the first arms control treaty in history. From March 1936 to February 1937 he served as Minister of the Navy after Mineo Osumi and before Mitsumasa Yonai. His most important post was Chief of the General Staff of the Imperial Japanese Navy from April 1941 to February 1944 during World War II. When he was prosecuted for war crimes, he was cooperative and friendly with the Americans, but he died of a heart attack in January 1947.